A song snippet stuck in my head and for the life of me couldn't figure out to which song it belonged. 

So I played it on my Yamaha keyboard and after a long while I finally figured out what it was. 

So I'm wondering how quick others could identify it from just a snippet.

Here is the recorded snippet from my keyboard : name the song.mp3

P.S. reply with spoiler tags to give chance for others to test their music memory recall capability.

EDIT: here is another well known song to test your music memory: another song to name.mp3 (I didn't play this one on my keyboard, just trimmed it from a karaoke version of the original)